The ultimate transposition! A penny and a washer are displayed. The penny is placed in a small black box. The washer goes into the magician's pocket. After opening and closing the box, the penny and washer are shown to have exchanged places. A clever principle does all the work for you. The penny and washer can exchange places as many times as the magician desires. No sleight of hand required. Made in the USA by FUN Incorporated.